Mechanical and Membrane Keyboard Typing Assessment Using Surface Electromyography (sEMG)

doi:10.1177/1541931215591268

Paper

Mechanical and Membrane Keyboard Typing Assessment Using Surface Electromyography (sEMG)

Published Sep 1, 2015 · DOI · Tri Pham, Nicholas J. Kelling

Proceedings of the Human Factors and Ergonomics Society Annual Meeting

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Abstract

There are many different types of keyboards available for use. However, the mechanical keyboard is becoming more popular with enthusiast computer users. Vendors and users alike proclaim that they provide increased typing speeds and that less physical effort is required to activate the keyswitches due to the additional tactile and auditory feedback from the keyswitch design. This study investigates words per minute (WPM), error percentage, and surface electromyography (EMG) of the flexor arm muscle activity during a typing task using a membrane and mechanical keyboard. Results showed statistical significance with both flexor muscles exerting less effort on a mechanical keyboard. Advantages were not limited the mechanical keyboard with WPM revealing greater typing speeds with the standard membrane keyboard.

Study Snapshot

Mechanical keyboards require less effort for typing, but both flexor muscles exert more effort than standard membrane keyboards, resulting in greater typing speeds.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Mechanical and Membrane Keyboard Typing Assessment Using Surface Electromyography (sEMG)

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